Stopper.



No. 689,573. V Patented Dec. 2 |901 y J. n'omcs. 4

sToPrER. v

(Application tiled Aug. 17, 1901.) (Ilo Model.)

INVENTOR UNITED STATES PATENT OFFICE.

JAMES BROOKS, OF MOUNT VERNON, NEW YORK, ASSIGNORTO HENRY BUDELMAN,OFBOROUGH OF BRONX, NEW YORK, N. Y.

s'roPPER.

SPECIFICATION forming part of Letters Patent Na-689,573, dated December24, 1901. Application filed August 17,1901.- Serial No. 72,458; (Nomodel.)

To wlZ 1071/0771/ t may concern:

Be it known that I, JAMES BROOKS, a citizen of the United States,residing at Mount Vernon, in the county of Westchester and State of NewYork, have invented certain new and useful Improvements in Stoppers, ofkwhich the following is a specification, reference being had therein tothe accompanying drawings. Y.

My inventionrelates to Stoppers, and the embodiments thereof hereinafterdescribed are particularly adapted for employment as stoppers foroil-cups orV other lubricating devices.

My invention consists ina part hereinafter referred to asa cap and shownas a removable cap and which may be any part of the shell or outercovering of a containing vessel, and a part hereinafter referred to asastop per, adapted to be inserted within and engaged or locked with thecap, the stopper being removable and the cap and stopper havingspring-actuated interlocking parts, and in the provision on one of theseparts of locking projections and on the other of these parts of groovesfor the insertion of the projections and locking-notches to engage theprojec tions, and in the provision on the stopper ofw a spring-valve andthe provision on the eaplof a valve-seat cooperating with .the valvewhen the stopper is locked, and,further,in the pro- Vision of camsandlocking-notches in the cap.

My invention further consists in various details of construction andcombinations-of parts.

I will now describe the constructions illustrated in the accompanyingdrawings, and will thereafter point out my invention in claims.

Figure 1 is a vertical central section of a stopper and cap embodying myinvention, showing the stopper engaged with and secured in the cap. Fig.2 is an underneath plan view of the same. Fig. 3 is a detached verticalsection of the cap. Fig. 4 is a detachedvertical section of a stopper ofmodied construction.

The accompanying drawings illustrate an oil-cup cap a, adapted to besecured upon an oil-cup and having a socket b in the body for receivingthe stopper, the socket being partly closed at its lower'end by anannular rim c andbeing open at its upper end. The rim ,c has verticalgrooves d d formed therein for the passage of projections of thestopper, and locking-notches eze at its lower face for such projectionsand cams or inclined faces .ff joining the grooves and locking-notches.The upper face of the rim c constitutes a valveseat for the spring-valveof the stopper, as hereinafter described. The stopper has a een tralstem g, constructed to freely enter the opening in the rim c, and in theconstruction shown in Figs. l and 2'the stem is in one piece and has atVits upper end and in one piece therewiththe head h, which may be milledand which has a countersunk annular groove in its lower face. withlocking projections e' t', which in the con struction shown in Figs. 1and 2 are formed by a pin extending through the stem and clamped inplace by a screwj, and in the construction shown in Fig. 4 are in onepiece with the lower part of the stem g, this lower part of the stembeingaseparate stud screwed into the upper part of the stem. A springithimble k is fitted upon the stem g and has a lower annular face,against which is fitted a The stopper is provided l gasket Z, this lowerface and gasket constituting a valve coperating with the upper face orValve-Seat of the rim cof the cap. A spring (shown as a spiral spring m)is arranged within the thimble k and around the stem g and works betweenashoulder at the upper end of the stem and the inner face of the lowerend of the thimble. When the stopper is disengaged from the cap, thisspring m presses thethimble against the locking projections 2f, as shownin Fig. 4, and when the stopper is within the cap and engaged therewiththe spring presses the lower end of the thimble against the upper faceof the rim c, forming a tightlyclosed valve at this point. The

gasket Z, i-nterposed at this place, should 4be of soft material, asleather, so that it will by inward expansion about the stem g tightlyclose the joint around this stem.

When the stopper is to be inserted, it is entered within the socket andturned so that the t projections 'i e' will pass freely through thegrooves d d. Then sufficient pressure is applied to compress the springm and permit the projections z' t' to pass through to the lower face ofthe rim c, and then the stem is rotated,

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the projections t' t engaging the cams f f and being forced therebyfarther downward until the projections i enter the notches e e. Thetension of the spring m draws the proj ections sharply into thesenotches, and the operator is thereby notified that the stopper islocked. A considerable tension is still eX- erted by the spring to holdthe valve tight, as above explained. When the stopper is to bewithdrawn, the head 7L is slightly depressed to force the pins t' t' outof the locking-notches e e and is rotated until the pins come into linewith the grooves CZ cl, and then the tension of the spring lifts thepins to normal position into contact with the gasket Z, and the stopperis unlocked and may be lifted out of the socket.

It will be noted that a stop to the compression of the spring m isprovided by the contact of the upper end of the thimble 7c and the lowerface of the annular groove in the head h, and I usually provide, asshown, that when this stop has been encountered in inserting the stoppereach of the pins t' t' is still against a vertical wall at one side ofits groove d, so that it can be rotated only over the cam f, and thatwhen this stop has been encountered in removing the stopper each of thepins 'L' is still against a vertical wall at one side of itslocking-notch e, but free to be rotated over the cam f. Thus regularityand certainty of action is assured and undue strains upon the spring areprevented. As in the operation of inserting the stopper it is onlynecessary to compress the spring suiciently to cause the pins t' toengage the cams f, the further compression being eected by the wedgeaction of the cams, and in the operation of removing the stopper thepins have to be moved only from their engagement with the notches e e toengagement with the cams, it will be seen that only a slight compressionis required in each ot these movements, the intervening movements beingcontrolled by the cams under the rotative movement applied by theoperator.

The annular groove in the lower face of the head h provides anoverhanging lip o, which, as shown, will cover up and conceal the gapabove the upper end of the thimble and the upper end of the neck of thesocket b, and this lip o may be of such length as to extend over theneck of the socket b, as shown.

In the construction shown in Fig. 4 provision is made for placing thestopper over an oiling wire or pin, so located that its upper end willbe exposed when the stopper is removed, by making the stem g hollow toreceive the wire, an opening n being formed centrally in the stemextending from the lower face thereof nearly to the top of the head h.

It is evidentthat many modifications may be made in the constructionsabove particularly described within the spirit and scope of myinvention.

IVhat I claim, and desire to secure by Let-v ters Patent, is-

1. The combination with a cap of a removable stopper, the stopper havinga stem and one or more locking projections on the stem, andaspring-valve arranged annularly about the stem and fitted to slidethereon, and the cap having a socket adapted to receive the stem andvalve and having an inner rim forming a valve-seat for the spring-valve,the rim having one or more'grooves therein for the insertion of thelocking projection or projections and means for locking the same.

2. The combination with a cap of a stopper, the stopper having a stemwith a head thereon, the head having an annularly grooved lower face,and the stem having one or more locking projections and a thimble-valvearranged annularly about the stem and fitted to slide thereon, and aspring between the thimble-valve and stem, and the cap having a neckadapted to enter the groove in the head of the stopper and having asocket adapted to receive the stem and thimble-valve thereon and havingan inner rim forming a valveseat for the inner end of the thimble-valve,the rim having one or more grooves therein for the insertion of thelocking projection or projections and means for locking the same.

3. The combination of a stopper having a stem and one or more lockingprojections thereon, and a spring-valve arranged annularly about thestem and tted to slide thereon, and a cap adapted to receive the stemand valve and with one or more grooves therein for the insertion of thelocking projection or projections and means for locking the same,

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and a valve-seat coperating with the valve when the stopper is locked.

4. The combination of a stopper having a stem and one or more lockingprojections thereon and a spring-valve arranged annularly about the stemand fitted to slide thereon, and acap adapted to receive the stem andvalve and with one or more Agrooves therein for the insertion of thelocking projection or projections and one or more locking notches forthe same, and a cam or cams between the groove or grooves and thelocking notch or notches and a valve-seat coperatin g with the valvewhen the stopper is locked.

5. The combination of a stopper having a stem g with locking projectionsz', t', thereon, the thimble-valve 7c on the stem, a spring between thethimble-valve and stem, and a cap having a socket b formed therein witha rim c at its inner end, and grooves d in -the rim, and cams f andlocking-notches e at the inner face of the rim, substantially as setforth.

In testimony whereof I have axed my signature in presence of twowitnesses.

"JAMES BRooKs.

Witnesses:

GEO. W. DENNY, JAS. H. FITCH.

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